function getValue(key) {
    if (!document.cookie) return null;
    const list = document.cookie.split(';') || [];
    for (const item of list) {
        const [k = '', v = ''] = item.split('=');
        if (k.trim() === key) return v;
    }
    return null;
}

function setValue(key, value) {
    document.cookie = `${key}=${value}`;
}

export default {getValue, setValue};
